Derby city, Connecticut
Official LSAD Designation: Derby city • Census GEOID: 0919480
• Naugatuck Valley Planning Region
Demographics & Population Profile
Population and demographics for Derby city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 12,925 | — | 2025 | Census |
| Median Age | 46.4 yrs | ±3.1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 5,896 | ±324 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).